600 students took the test on Physics and chemistry. 35% students failed in Physics and 45% students failed in chemistry and 40% of those who passed in chemistry also passed in Physics, then how many students failed in both :
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If the price of the commodity is increased by 50% by what fraction must its consumption be reduced so as to keep the same expenditure on its consumption?
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2
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The length, breadth and height of a room are in ratio 3:2:1. If breadth and height are halved while the length is doubled, then the total area of the four walls of the room will
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3
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At the beginning of a year ,the owner of a jewel shop raised the price of all the jewels in his shop by x% and lowered them by x%. The price of one jewel after this up and down cycle reduced by Rs. 100. The owner carried out the same procedure after a month. After this second updown cycle,the price of that jewel was Rs. 2304. Find the original price of that jewel(in Rs.)
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4
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After three successive equal percentage rise in the salary the sum of 100 rupees turned into 140 rupees and 49 paise. Find the percentage rise in the salary.
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5
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In an election a candidate who gets 84% of the votes is elected by a majority of 476 votes. What is the total number of votes polled?
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6
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The population of a town increases every year by 4%. If its present population is 50,000, then after 2 years it will be
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7
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In the recent, climate conference in New York, out of 700 men, 500 women, 800 children present inside the building premises, 20% of the men, 40% of the women and 10% of the children were Indians. Find the percentage of people who were not Indian?
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8
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If salary of X is 20% more than salary of Y, then by how much percentage is salary of Y less than X?
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9
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The average weight of a class of students is 67.5 kg. The weight of the class teacher is 25% more than the average weight of the class. The average weight of the class is less than the class teacher by x%. The value of x is:
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10
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When any number is divided by 12, then dividend becomes `1/4t h` of the other number. By how much percent first number is greater than the second number?
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